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Published March 1, 2020 | Published + Submitted
Journal Article Open

Constraints on dark photons and axionlike particles from the SuperCDMS Soudan experiment

Abstract

We present an analysis of electron recoils in cryogenic germanium detectors operated during the SuperCDMS Soudan experiment. The data are used to set new constraints on the axioelectric coupling of axionlike particles and the kinetic mixing parameter of dark photons, assuming the respective species constitutes all of the galactic dark matter. This study covers the mass range from 40  eV/c² to 500  keV/c² for both candidates, excluding previously untested parameter space for masses below ∼1  keV/c². For the kinetic mixing of dark photons, values below 10⁻¹⁵ are reached for particle masses around 100  eV/c²; for the axioelectric coupling of axionlike particles, values below 10⁻¹² are reached for particles with masses in the range of a few-hundred eV/c².

Additional Information

© 2020 Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. Received 2 December 2019; accepted 26 February 2020; published 17 March 2020. The SuperCDMS collaboration gratefully acknowledges technical assistance from the staff of the Soudan Underground Laboratory and the Minnesota Department of Natural Resources. The iZIP detectors were fabricated in the Stanford Nanofabrication Facility, which is a member of the National Nanofabrication Infrastructure Network, sponsored and supported by the NSF. Funding and support were received from the National Science Foundation, the U.S. Department of Energy, Fermilab URA Visiting Scholar Grant No. 15-S-33, NSERC Canada, the Canada Excellence Research Chair Fund, the McDonald Institute (Canada), MultiDark (Spanish MINECO), and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project No. 420484612. The SuperCDMS collaboration prepared this document using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. Pacific Northwest National Laboratory is operated by Battelle Memorial Institute under Contract No. DE-AC05-76RL01830 for the U.S. Department of Energy. SLAC is operated under Contract No. DEAC02-76SF00515 with the U.S. Department of Energy.

Attached Files

Published - PhysRevD.101.052008.pdf

Submitted - 1911.11905.pdf

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PhysRevD.101.052008.pdf
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Additional details

Created:
August 19, 2023
Modified:
October 18, 2023